Windshield wiper



May 28, 1935. w. K. CORRELL WINDSHIELD WIPER Filed Feb. 8, 1934 we F53 m k .ci lifiii 3: im 3%? Patented May 28, 1935 Q 1 I e Q 1 UNITED STATES. PATENT OFFICE 2,002,657 WINDSHIELD WIPER William K. Correll, Jackson, Miss. Application February 8, 1934, Serial No. 710,206 1 Claim. (Cl. 74-57) This invention relates to windshield wipers gene grooves 6a, where it will start back along the orally, and particularly to that type of w p shaft 4 in the cross p a r v 6. adapted to travel across the entire surface of The wiper support I, has disposed centrally the glass. therethrough the circular opening as shown in One important object of this invention is to Figure 5, through which is adapted to pass the 5 provide a device of this character, which is adaptshaft 4, as shown in Figure 4; and thus it is ed for use on any type of windshield. seen that the wiper support I as carried by the Another object of this invention is to provide tracks 2 and 3 has extending centrally therea device of this character, which will have a through the shaft 4 which is disposed centrally steady stroke from one end of the glass to the between the tracks 2 and 3. 10 other. The wiper support I has extending centrally A still further object of this invention is to from the front to center thereof a circular openprovide a device of this character which is driven, ing 8, as shown in Figure 2, intowhich opening by a mechanical means and which is strong and is fitted the key ill. The key It is round in shape sturdy of construction, and comprising a simple with the inner side thereof concave and havl5 cooperative essential of parts, one embodiment ing disposed thereon the tongue Illa as shown of which is disclosed in the drawing. in Figures 4, 5, 6 and '7. This tongue Illa of the In the drawing key I0 is adapted to fit in the groove 6 on the Figure 1 is a front view of the automobile windshaft 4; and thus as t Shaft 4 rotates the y hi ld ith t d i e o ted th r o It will travel along the surface of the shaft 4 20 Figure 2 is a front sectional view of the device. fr m n nd th r of to the th r by f l wi Figure 3 is a frontsectional View of the wiper he Sp t a k 5 in h Shaft The y In carrying means with the key'removed therefrom. s held in the Wiper support I against the shaft Figure 4 is a cross sectional view of the wiper 4 by a plate lb, as shown in Figure 2; the plate carrying means, key disposed therein and drive lb being a e d to the W p pp I by 25 shaft. means of screws 1 set in respective screw hole Figure 5 is a side view of the wiper carrying W a Shown in igures 2, 3 and 4. Thus it is means without a shaft being in connection there- Seen that the y While Permanently afl with. within the wiper support I, is permitted to revolve Figure 6 is a front view of the key carried by therein, as the tongue Ina follows the groove 6 30 the wiper carrying means. on the shaft 4.

Figure 7 is ide View thereof, .As the shaft 4 is revolved, the key It will fol- Following the drawing in detail, the numeral 1 low the grooves 5 therein and thereby carry a designates wiper carrying means which is incunt- W p pp I mounted on the tracks 2 and 3 ed on the tracks 2 and it, as disclosed in Figures from one end of the shaft 4 to the other and then 35 l and 2. These tracks 2 and 3 are supported back again, and so On back and forth a n by brackets 3-13 to either side of the frame as the shaft 4 is revolved. By this means the C of the windshield, as shown in Figure 1. The wiper w, mounted at s by the pin 1c on the arm wiper supporting means i, has disposed centrally M o t p r pp is C rried. back and 49 across the lower and upper sides thereof grooves forth across Windshieldto and 912, into which are respectively adapted Construction, Operation and advantages of to fit the tracks 2 and 3, as shown in Figures 4 my invention will, it is believed, be understood and and approved by those skilled in the art when A shaft t is disposed centrally between the the i q description reajd in tracks 2 and 3, as shown in Figures 1 and 2, and nectwn Wlth. the acwmpanymg drawing h 45 has at one end thereof a pulley 5, by means of figg ig f g g g i i l m Lye eac oierlssuc as o aecare g; $232 2; z i g f gs g g gi j ig of any requirements; and, while I have here D f A shown and described and pointed out certain meceemcgl means r ,robatmg Shaft 01 P novel features of my invention, it is to be under- P P- has eXtendmg a1ngt f stood that various omissions, substitutions and suna r ss-sp l grooves whlch t rm changes in the form and details of the device hats at either end of the shaft in a semi-circue and its means of operation may be made by those lar groove ta, and thus a key traveling along one skilled in the art, and that I do not wish to be of the spiral grooves 5 will finally reach the restricted to the precise structure disclosed, but

hold myself entitled to make such changes therefrom as fairly fall within the scope of what I claim.

What I claim is: I

In a device of the character described, parallel tracks extending longitudinally across the top of a windshield, a shaft disposed parallel to said bars and adjacent thereto, said shaft having disposed on the surface thereof cross-circular spiral grooves, a housing disposed about said shaft and having extending centrally through the front thereof a circular opening, a key rotatably mounted within said opening of the housing and having disposed on the inner face thereof a tongue adapted to fit within the spiral grooves of said shaft, and a plate disposed on the outer side of said housing and adapted to retain the key within the circular opening of the housing, and longitudinal parallel grooves disposed on the upper and under surfaces of the housing, the longitudinal parallel tracks adapted to fit within said parallel grooves, the housing adapted to travel along the parallel tracks on revolution of 10 the spiral shaft.

WILLIAM K. CORRELL. 

